Display of muliple fields (Acess 2000)

I have an Employee table joined to an Change Request table. The two tables are joined by an Employee Number. I want to allow the data entry person to choose a name from a Lookup table rather than the number.
Secondly I have set up a FirstName and LastName field in the Employee table (I'm not sure this is the best way to set this up?). I need to combine these two on the form and report.
I assume this can be done with a Query, but being a relative novice I am struggling. Any suggestions would be apprieciated.